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Status Future consideration
Workspace AIX
Created by Guest
Created on Feb 13, 2020

add pcmpath query adapter summary in lsmpio command

We've learned few month ago that SDDPCM will be soon unsupported by IBM. We have to migrate to AIX_PCM but pcmpath command can't manage devices under AIX_PCM. We used to use pcmpath query adapter to quickly check the state of each fscsi device (check State and Mode). We have to use lsmpio but it's not possible to have a summary of State and Mode for fscsi devices as we can have with pcmpath query adapter.

Idea priority High
  • Guest
    Feb 15, 2020

    Unfortunately, lsmpio is a binary, but you could use something like this to transform the output.
    This is not super efficient, but it's on par with the kind of things many AIX scripts do.

    pcmpath_query() {
    printf "%-8s %8s %15s %6s %6s %6s\n" Adapter Status Selects Errors Paths Failed
    for fscsi in $(lsdev -C | grep fscsi | cut -f 1 -d \ ) ; do
    enabled=$(lspath -p $fscsi | grep Enabled | wc -l)
    failed=$(lspath -p $fscsi | grep -v Enabled | wc -l)
    if [[ $(( $enabled + $failed )) -eq 0 ]] ; then status=UNUSED ;
    elif [[ $failed -eq 0 ]] ; then status=NORMAL
    elif [[ $enabled -eq 0 ]]; then status=FAILED
    else status=DEGRADED;fi
    fcs=$(lsdev -CFparent -l $fscsi)
    selects=$(fcstat $fcs | grep Requests | tr -d \ | cut -f 2 -d : | paste -sd+ - | bc)
    errors=$(lsmpio -ae | grep -p $fscsi | grep Total | tr -d \ | cut -f 2 -d : )
    paths=$(lsmpio -ar | grep -p $fscsi | grep 0x | wc -l)
    failed=$(lsmpio -ar | grep -p fscsi0 | grep 0x | awk '{print $3 "\n" $4 "\n" $5;}' | paste -sd+ - | bc)
    printf "%-8s %8s %15s %6s %6s %6s\n" $fscsi $status $selects $errors $paths $failed